Warning sirens sounded for about two hours, which Stoppel says was difficult for the families who lived through the storms earlier this month to hear again. "They relived it tonight, very dramatic, very tough night," Stoppel says.

Kay Rossi, a Red Cross case worker, has been in Oklahoma City all week, but left the area to visit her brother in Tulsa before the storm system moved through.

"I hope I don't have to see a tornado while I'm out here. For the last three days the weather has been horrible," says Rossi, who has spent the night watching television to keep updated on what's happening.